The install size for Dead Alliance has been revealed coming in at a decent disc size at launch releasing on August 29, 2017 taking up a total of 4.1 GB on the Xbox Marketplace. Dead Alliance is a rather odd game in that it is split between a couple versions. You can either buy the game as a regular package or just the multiplayer portion. It all downloads the same file size since the extra content if a 10mb license install and honestly single player isn't much. It's basically just a couple missions and some survival areas.
The multiplayer is the true portion of this game and quite a bit cheaper which is nice. This is a zombie based first person shooter. It's basically just a shooter, but you can use the zombies to your advantage. There are a couple different objective based modes here and adding the zombie element is interesting. A final note is that the customization area is a series of in-game purchases where you can get killstreaks, guns and perks.
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